The fastest gravel race wheels are flat. Featuring the same Chopped Aero Speed design as the Terra Aero CLX wheel set the all new Terra Aero CL delivers the performance demanded by today’s best gravel racers packaged for the everyday rider. The 5.38mm bead hook delivers FlatStop protection to keep you focused on what’s important—delivering your best no matter the terrain. At a Glance Use - Gravel Racing and Riding Weight - 1 608g with tape and valves Rim Depth and Width - 50mm / 45mm F/R depth 38.5mm external width Bead Hook Width - 5.38mm  Hub and Engagement - DT Swiss 350 36T Tire Recommendation - Tracer TLR - 45mm Technical Specifications   Rims Wheel Size / ETRTO 622 × 27 700c Tubeless Compatibility Yes Insert Compatibility Yes Brake Compatibility Disc Centerlock Rim Construction Carbon Clincher Hooked Valve Stem Length Roval Tubeless Valve Alloy 70mm Front 60mm Rear Hole Count Front: 21H Rear: 24H Rear Rim Terra Aero CL Carbon Clincher 700c CR2477 Rear Rim Dimensions Depth: 45mm External Width at widest point: 38.4mm Internal Width: 27mm Bead Hook Width: 5.38mm Front Rim Terra Aero CL Carbon Clincher 700c CR2478 Front Rim Dimensions Depth: 50mm External Width at widest point: 38.5mm Internal Width: 27mm Bead Hook Width: 5.38mm Hubs Rear Hub DT Swiss 350 Straight Pull Center Lock 12x142mm Rear Freehub Body DT Swiss Ratchet 36T: Sram XD-R Rear Hub Bearing DT Swiss Stainless Steel - DS: 6902 15 x 28 x 7 mm NDS: 6902 15 x 28 x 7 mm Front Hub DT Swiss 350 Straight Pull Center Lock 12x100mm Front Hub Bearing DT Swiss Stainless Steel - DS: 6902 15 x 28 x 7 mm NDS: 6902 15 x 28 x 7 mm Spokes and nipples Nipples DT Swiss Hex Prolock Al 2.0x14mm Rear Spokes DT Swiss Competition Race Straight Pull 2.0x1.6mm: 24qty DS: 270mm NDS: 274mm Rear Lacing Pattern One-Cross / Three-Cross 2:1 Not Tucked Front Spokes DT Swiss Competition Race Straight Pull 2.0x1.6mm: 21qty DS: 260mm NDS: 273mm Front Lacing Pattern Two-Cross / Radial 2:1 Not Tucked Tire info Tubeless Tape Width 30mm Tire Type Clincher Tubeless and Clincher Tube Type Design Tire Tracer TLR 45mm Approved Tire Widths  35mm-60mm 2.2" Max Pressure 35mm – 70psi​ 36-45mm – 55psi​ 46-50mm – 45psi​ 51-60mm - 40psi Weight Wheelset Weight 1608g with valves and tape Rear Weight 838g with valves and tape Front Weight 770g with valves and tape General Warranty Limited Lifetime Warranty Assembly Method Hand Built Weight Limit 275 lbs. / 125 kg. Certifications ISO 5775-2 UCI Approved E-bike Approved Yes SL style systems or max 350W Extras 4 Extra Spokes and Nipples